Whenever information shall come to the electrical inspector that any person to whom a permit has been granted under the terms of this chapter has committed any act rendering the permit subject to revocation, it shall be the duty of the officer having such information forthwith to submit the facts in writing to the council, and at the same time serve upon the person to whom a permit has been granted, a copy thereof, together with a notice citing such person to appear before the council for investigation of said complaint at a time and place stated in such notice. In case service cannot be had upon said person, the same shall be mailed to their last known business address. No further pleadings shall be necessary. Such hearing or investigation shall be informed if on such hearing or investigation the council shall find that cause exists for the revocation of such permit and same may be revoked by a majority vote of the council.